SSC CHSL 2020 PYQ — Question 91

SSC CHSL - 19th October 2020 - Shift 1 • Reasoning • Q91

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

11 17 8
5 3 15
3 7 ?
361 729 1225

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e 12.

Understanding Application

The logic used here is:

(11 + 5 + 3)2 = 192 = 361

(17 + 3 + 7)2 = 272 = 729

Similarly,

(8 + 15 + x)2 = 352 = 1225

x = 12

Hence, option 2 is the correct answer.